MESON Chess Problem Database

Problem Display
PID: 148600 (4B1n1/2N5/KR2p1p1/4pk1b/4p3/2NQ3n/4P3/2B3R1 w - - 0 1)

Sinclair, AN

British Chess Magazine, 1901

4B1n1/2N5/KR2p1p1/4pk1b/4p3/2NQ3n/4P3/2B3R1

#2

9 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe6?
      • threat
        • 2.Qxe4#
      • 1...Bxe2
        • 2.Bxg6#
      • 1...exd3
        • 2.e4#
      • 1...Bf3
        • 2.Bxg6#
      • 1...Sf2
        • 2.Rg5#
      • 1...Sg5
        • 2.Rxg5#
      • 1...Sf6!
    • 1.Qxh3+?
      • 1...Bg4
        • 2.Rf1#
      • 1...Kf6!
  • Keys
    • 1.S7d5!
      • threat
        • 2.Qxe4#
      • 1...Bxe2
        • 2.Bxg6#
      • 1...exd3
        • 2.e4#
      • 1...exd5
        • 2.Bd7#
      • 1...Bf3
        • 2.Bxg6#
      • 1...Sf2
        • 2.Rg5#
      • 1...Sg5
        • 2.Rxg5#
      • 1...Sf6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);XP(f)
      • Threat
        • QAB1(E),XP(b)
      • Vars
        • B(e);N_GUARD,P_PINQ(E),XP(C)::B(I),XP(g)
        • P(b);N_SPINP(b),OGATE,XQ(E)::P(C)
        • B(e);N_GUARD::B(I),XP(g)
        • S(a);N_GUARD::R1(B)
        • S(a);N_GUARD::R1(B),XS(a)
      • Refutation
        • S(h);
    • Try
      • Q(E);CHECK,N_PINP(b),XS(a)
      • Vars
        • B(e);P_SPINB(e)::R(B)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(f)
  • Actual
    • S(H);
    • Threat
      • QAB1(E),XP(b)
    • Vars
      • B(e);N_GUARD,P_PINQ(E),XP(C)::B(I),XP(g)
      • P(b);N_SPINP(b),OGATE,XQ(E)::P(C)
      • P(f);OGATEB,XS(H)::B(I)
      • B(e);N_GUARD::B(I),XP(g)
      • S(a);N_GUARD::R1(B)
      • S(a);N_GUARD::R1(B),XS(a)
      • S(h);N_GUARD,SBLOCK::S(H)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).